Albert Gerald Baillargeon was born in Newmarket, New Hampshire on September 18, 1921.  He was ordained by Bishop Matthew Brady on May 31, 1947 at St. Joseph’s Cathedral. 
His first two assignments were at St. George’s in Manchester and St. Anne’s in Berlin, which at the time were the two largest parishes in the diocese. In August of 1951 he became pastor of St. Edmond in Manchester while teaching at Bishop Bradley High School (now Trinity High School) until 1960.
He served for the next four years at various posts in the diocese and in 1964 Fr. Baillargeon was appointed pastor of St. Leo in Gonic.  On March 6, 1968, he was appointed temporal administrator of St. Marie Parish.

One of his first tasks was to restore the convent of the Sisters of the Presentation of Mary on Wayne Street. The next project was to sandblast and repoint the bricks on the church.  He established the first parish council in 1969 as well as the first school board

The vocation crisis that started around 1969 took its toll on the Presentation Sisters.  The decline of Sisters to serve, the dwindling enrollment and the increased cost of teachers lead to the closing of Ste. Marie High School in 1973.

On October 3, 1975 Fr. Baillargeon purchased a building on Manchester Street for St. Vincent de Paul Society which because the St. Vincent de Paul Thrift Shop. Later that month he started the addition of five mortuary rooms for the Mt. Calvary Mausoleum as well as the construction of the stained glass windows. The new mausoleum was dedicated on May 21, 1977 by Bishop Odore Gendron.
 
Fr. Baillargeon also added four new confessionals in the rear of Ste. Marie Church.
In May of 1978 he inaugurated the devotion of the Eucharistic Vigil in the parish.  On the first Friday of the month there was an all-night vigil from 7 pm until 7 am.  And in 1980 Fr. Baillargeon presided over the centennial of the parish with a nine-month long celebration. In 1982, he established the Rivier Center kindergarten now Ste. Marie Child Care Center.
He instituted the devotion to the rosary by the public recitation of the rosary before the daily Masses and established perpetual adoration of the Blessed Sacrament.

In 1983, Father Baillargeon was appointed pastor of St. Joseph Parish in Ossipee and the mission of Our Lady of Perpetual Help in Chocorua. In his fifteen years at Ste. Marie he presided over the many changes in response to the Vatican II Council. Fr. Baillargeon died in 2005.